70 years ago, Ella Weissberger stood on stage as a cat in the first performances of the children's opera Brundibar. The stage was in a Nazi concentration camp and she was a prisoner. Weissberger still attends performances and shared her story with The World's Nina Porzucki.

70 years ago, Ella Weissberger stood on stage as a cat in the first performances of the children's opera Brundibar. The stage was in a Nazi concentration camp and she was a prisoner. Weissberger still attends performances and shared her story with The World's Nina Porzucki.

70 years ago, Ella Weissberger stood on stage as a cat in the first performances of the children's opera Brundibar. The stage was in a Nazi concentration camp and she was a prisoner. Weissberger still attends performances and shared her story with The World's Nina Porzucki.